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Author Topic: How to find which error class corresponds to a DTC read by OBD  (Read 198099 times)
smack
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« Reply #45 on: June 30, 2012, 09:37:23 PM »

DTC Error Code Class Table (8 bit table)   0x106AD
DTC Manufacturer P-codes (16 bits values)   0x12CC4
DTC CARB P-codes (16 bits values)      0x1324C

Search for an hexadecimal value of 1114 in the first table.

Note: Since it's a Manufacturer P-Code, the error only appear in the first table.

( 0x12EDC - 0x12CC4 ) / 8 = 0x43

Didn't you mean to say second table instead of first table?
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krazydbiker
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« Reply #46 on: July 01, 2012, 01:37:10 PM »

sorry to bother anyone, kind of new here dont know if im out of line, but ive been learning me7, but on volvo's does anyone know if this same method would work? or is it possible its manufacturer specific?
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poxxxy
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« Reply #47 on: August 07, 2012, 03:11:14 AM »

Having issues myself here: I was searching for the VCDS code but appear to have found the P code in 4 locations as you described. However i'm lost when it comes to the tables as they are in different locations and the damos doesn't appear to cover them.

http://nefariousmotorsports.com/forum/index.php?topic=2365.msg22267#msg22267
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zillarob
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« Reply #48 on: November 17, 2012, 01:50:39 PM »

Recently swapped a 2.7 into a b6 and exploring options for codes due to incompatibilities between the two. Running mbox.

Question is: Do we need to repeat for every instance in the 0x12cc4 table?
Also, the examples were given for a mfg spec code. Do we need to mess with the CARB table at 0x1324c the same for generic codes?


A little more detail on what I am playing with if you want to check my work:

P1523 Crash Signal, 1st at 13106
13106-12cc4=442
442/8=88
88+106ad=10735
The value at 10735 is 13. Guessing this means just store the code?

P0501 VSS Implausible, 1st at 131fc
131fc-12cc4=538
538/8=a7
a7+106ad=10754
The value at 10754 is 03. Guessing this means store code and pop the light?

Like I said, just going over options now. I have a feeling this is the wrong way to handle the vss code. Guessing light may be out, but wont make the ecu happy.
This tranny does not have a provision for the speed sensor. Prob end up making a bracket for the vss somewhere else (cv bolts?) and fixing the pulse per mile.
Or you guys think there is a way to tell it to use the abs mph? (Speedo works fine)
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anger17
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« Reply #49 on: December 15, 2012, 07:29:34 AM »

I'm working on passat file 4B0906018DJ. And I can't find DTC Sad
For example I searching for CLAHSH.

1114  (1441C)
0000  (14254)


(1441C - 14254) /8 + 10d62 = 10D9B

But I believe it's not CLAHSH.

Is it possible to find CLASHS, for example???
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anger17
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« Reply #50 on: December 15, 2012, 07:30:38 AM »

sorry, I mean CLAHSH)
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marcoco
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« Reply #51 on: January 28, 2013, 03:51:13 PM »

Hi i'm  studing for clear dtc

i want to delete p0102 in this golf file.

i have searched the dtc table

0x d93fe  8bit adress

0x daab8  16bit adress

and 0102 in hex than i find it  to adress dab84

now (dab84-daab8)\8= 19

d93fe+19= d9417 and set to 0

is right ?or what is wrong?

i hope somebody can help me.
thanks


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ddillenger
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« Reply #52 on: January 28, 2013, 04:00:16 PM »

My question is this:

How do you determine the DTC table location in other flashes?
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k0mpresd
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« Reply #53 on: January 28, 2013, 04:18:30 PM »

get yourself a defined file for the flavor of ecu youre working with and search for fehler or fehlerklasse.
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prj
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« Reply #54 on: January 28, 2013, 05:36:39 PM »

I dislike this thread.
It shows people how to do things the wrong way.

You should never ever have to touch a single class.
I've done full delete of about everything: NWS, SAI, EGT, EVAP, Rear O2 and so on. Never ever had to touch a single error class, and no errors ever logged.
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ddillenger
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« Reply #55 on: January 28, 2013, 05:40:48 PM »

I get that this just hides the DTC, and a proper disable should prevent it from being tripped in the first place, but it would seem this would have its place.

I just want to understand it for my own sake.
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jolidj
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« Reply #56 on: February 21, 2013, 07:52:18 AM »

nice post thank you.
i have one question....

i have dtc error in my edc16 ford ecu. p2584 .

the forumul is ok for all ecu??

DTC Error Code Class Table (8 bit table)   0x106AD
DTC Manufacturer P-codes (16 bits values)   0x12CC4     
DTC CARB P-codes (16 bits values)      0x1324C

this is for all bosch ecu??
sorry i dont uderstant very well this question.

exssample for my ford.

i serch in hexa the 2584 

i find 1c6aa - 12cc4 / 8 = 133c  . 133c + 106ad = 119e9   is right??

if i see the 119e9 this is out of dtc code. please help me . thank you.
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jolidj
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« Reply #57 on: March 25, 2013, 06:23:28 AM »

nothing information for this argoment?
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AudiMan85
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« Reply #58 on: July 11, 2013, 01:42:39 PM »

What if we want to disable a transmission code. How would we go about doing that? As trying the OP way nets nothing relitive to what is soon. I have been able to disable other codes fine. More like verify what has already been coded out as 0'ed.
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ddillenger
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« Reply #59 on: July 11, 2013, 01:44:37 PM »

What if we want to disable a transmission code. How would we go about doing that? As trying the OP way nets nothing relitive to what is soon. I have been able to disable other codes fine. More like verify what has already been coded out as 0'ed.

NOONE KNOWS.
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